Pink stuff around radiator hoses... (1 Viewer)

[Serge]

This morning I was looking under the hood of my 2000 LX470 and noticed that there is some pink stuff around the upper radiator hose as well as thermostat housing. I have recently replaced the timing belt and water pump and this pick stuff was there prior to that job. I cleaned up everything I could and reinstalled old hoses, but apparently some coolant is still sipping through.
I am attaching a pic of it. What would a proper course of action be to address this issue?



Thanks

 

[Trunk Monkey]

New hose, new t-stat gasket.

 

[Kigiin]

I have that but way, way less. I think I would change things.

How many miles do you have on your LX?

 

[Michael Hanson]

Pink stuff-red coolant. Better or tighter hose clamps. MIke

 

[Serge]

I have that but way, way less. I think I would change things.

How many miles do you have on your LX?

I have 187,0XX miles on it at the moment.

Pink stuff-red coolant. Better or tighter hose clamps. MIke

Thanks Mike. Yes, I know it's coolant. I was just curious should I change anything else besides the hoses. Like the thermostat housing maybe?

 

[Michael Hanson]

Start easy and cheap, with hoses . Then see what happens. MIke

 

[OGBeno]

There are actually 2 orings to lines feeding that housing that go bad (and is usually a sign that your water pump is on its way out too).

96761-24019 and 96761-35035 are the PNs.

They list for about $6 total from Toyota. Put some FIPG on the housing,mating surface while you are at it....cheap insurance.

The constant tension OEM clamps rarely go bad. Though checking the hoses is not a bad idea as Mike suggested. Both hoses are less than $30 list from Unkle Toyota.

 

[bkgee]

beno, how would the leaks be related to a water pump going bad? pump not pumping hard enough, creating back pressure, then leaking? i'm curious as i have a small bit of weepage in those areas. i've got the hoses ready for a changeout but i was hoping to get another 30k miles from my WP... so far i'm not loosing significant amount of coolant from overflow tank.

 

[Serge]

Thanks for advice beno, I believe I had those o-rings replaced when changing the water pump.

The hoses are original and with over 187K miles on the clock can probably stand being replaced.

Serge

 

[NMuzj100]

Are you losing coolant ?

A little pink dust wouldn't bother me as long as I didn't need to add coolant but yours looks pretty excessive.

I got a bit of pink around the radiator cap and a new cap solved the issue.

 

[Serge]

Are you losing coolant ?

A little pink dust wouldn't bother me as long as I didn't need to add coolant but yours looks pretty excessive.

I got a bit of pink around the radiator cap and a new cap solved the issue.

I can see that coolant is squirted out on the fan and serpentine belt. So, yes there is a bit of a coolant loss, but it's very slow.

I see this pink residue even on the place where the little hose goes into the overflow reservoir.

 

[NMuzj100]

I can see that coolant is squirted out on the fan and serpentine belt. So, yes there is a bit of a coolant loss, but it's very slow.

I see this pink residue even on the place where the little hose goes into the overflow reservoir.

How often and how much you need to add coolant to the reservoir is a better measure of the seriousness of the leak than pink crust. You could have a pretty serious leak with no sign of pink deposits.

None of the "pink" in the picture is FIPG (formed in place gasket) ? That's what it looks like on the thermostat housing.

 

[Brock]

I have 187,0XX miles on it at the moment.



Thanks Mike. Yes, I know it's coolant. I was just curious should I change anything else besides the hoses. Like the thermostat housing maybe?

time for the second 90k service it appears just in time (timing belt, water pump, etc)

 

[marshotel]

I have recently replaced the timing belt and water pump and this pink stuff was there prior to that job. I cleaned up everything I could and reinstalled old hoses, but apparently some coolant is still slipping through.
I am attaching a pic of it. What would a proper course of action be to address this issue?

It seems strange that your cooling system would leak from everywhere at the same time.

What did you fill the system with after you worked on it?
(looks like saltwater or acid or something.)

Who performed this work?
How fast is it leaking?
How frequently do you have to add coolant to keep it full?

A little pink residue is nothing to worry about, but you have more than a little.

I would try flushing the system, and cleaning off all that residue. Then tighten all the clamps, torque the bolts to spec, and refill the system with proper Toyota longlife Red coolant mixed 50/50 with distilled water.

 

[Serge]

time for the second 90k service it appears just in time (timing belt, water pump, etc)

Brock, the second 90K service was done 5000 miles ago. If you re read the original post I made I do mention replacing t-belt and water pump. The pink stuff was there prior to service and showed back up after it. The hoses are original, I did not replace them. They have 187K miles on them. Do you guys think it's a lot?

How often and how much you need to add coolant to the reservoir is a better measure of the seriousness of the leak than pink crust. You could have a pretty serious leak with no sign of pink deposits.

None of the "pink" in the picture is FIPG (formed in place gasket) ? That's what it looks like on the thermostat housing.

Haven't had to add any in the past 5000 miles. The FIPG around thermostat was black in color. This pink color is consistent with Mr. T premixed coolant color.

I will swap the hoses for new ones and see what happens as MIke mentioned.

 

[Serge]

It seems strange that your cooling system would leak from everywhere at the same time.

What did you fill the system with after you worked on it?
(looks like saltwater or acid or something.)

Who performed this work?
How fast is it leaking?
How frequently do you have to add coolant to keep it full?

A little pink residue is nothing to worry about, but you have more than a little.

I would try flushing the system, and cleaning off all that residue. Then tighten all the clamps, torque the bolts to spec, and refill the system with proper Toyota longlife Red coolant mixed 50/50 with distilled water.

I did the work myself, it's not difficult thanks to this message board, and filled the system with Toyota premixed coolant.

It is not leaking very fast at all and I haven't had to add any coolant to it yet, but watching the overflow.